Communication is of the essence, much like time.....a smile that wasn't seen, a wink between friends to indicate an understanding, ( that didn't get noticed ) or a certain word that meant one thing to one, and it was a trigger for another....
It's all tooooo easy to wreak havoc on a relationship through poor communication....

Between loved ones, a LOT of understanding, and trying on each others' moccasins for a moment, might save a relationship, providing you don't actually go around borrowing their favorite pair!!

Expectations in relationships are touchy. To have them is to have to express them, immediately, while the iron is hot. To have expectations and NOT express them is a recipe for certain disaster. Resentments build, forming a wall to open communication and understanding.

Miscommunications need to be handled with caution, listening to what the other has to say, and repeating back to them, to show you understand what they said and how they feel. THEN you can tell your side, without interruption, ( for interrupting kills relationships ) and how you felt at the time. The goal, in my eyes, is to understand the other and meet them halfway in order to preserve a loving and caring environment where one feels loved, understood, and accepted even through misunderstandings.
It's never too late to try to fix a misunderstanding, and while the communication is key, so is a hug, a smile, a nod, a gesture of some kind to indicate that it's ok that you messed up...
I think if some tried harder, there might be fewer wars.